Multiple partonic interactions in heavy-ion collisions

TL;DR

This paper explores how multiple partonic interactions influence the early stages of heavy-ion collisions, highlighting their role in generating novel QCD phenomena across different phases from Color Glass Condensate to Quark-Gluon Plasma.

Contribution

It provides a theoretical overview of MPI's role in heavy-ion collision evolution, emphasizing their significance in early-stage QCD phenomena.

Findings

MPI contribute to the formation of the Glasma

MPI are crucial in the transition to Quark-Gluon Plasma

MPI underpin novel QCD phenomena in heavy-ion collisions

Abstract

I discuss the role played by multiple partonic interactions (MPI) in the early stages of relativistic heavy-ion collisions, for which a weak-coupling QCD description is possible. From the Color Glass Condensate, through the Glasma and into the Quark-Gluon-Plasma phase, MPI are at the origin of interesting novel QCD phenomena.